A real easy to make and simple target is go to Wal Mart and buy some of the multi colored 3"x5" index cards in very bright colors. I then take a black magic marker and draw an X from corner to corner. Tape that to any box you have around. (a word of warning.. don't tape that to a corn flakes box or they might consider you a cereal killer ) and then like Sabotloader said, put your front sight in the center of the X and let fly. The reason I like the bright colored cards are at longer ranges when it becomes impossible to see the X with your naked eye, you just aim for the dead center of the card and keep right on shooting. I also figure if I can hit that index card at what ever distance I am shooting, a deer or any critter has little chance of getting away.